If mountains are still important then look at the towns in far eastern TN like bristol,Johnson city,king sport,greeneville,Newport,sevierville,maryville and others. If I were you I'd try and research all these places as much as ya can,and then take a vacation out there visiting the ones you liked the most. Talk to the locals and ask them questions on what they like and dislike about it. That's a pretty big move. I love my Appalachia out east here,but I love and miss my Rockies even more. I went from western Colorado to Pennsylvania, and its a pretty big change culturally,the way of life,and scenery.
Is all your family in Utah? I'd love to move back west,but I just can't get past taking my wife and kids away from there other family members. To me family is more important than the locale I live in. And to me home is where your family is. There's no replacing them. I learned that the hard way when I was out west. Like I said that's a big move and requires a lot of thought and prayer imo.